Here's a post I wrote on a thread on the old board....
Steve, The packing is dripping a little now when the shaft is turning after a brief “break-in” period. It does not drip when still.
As I understand it, Gore-Tex is a second generation Teflon packing. It is made from Teflon fibers (or Teflon coated fibers) woven into a braid. It replaces the older Teflon impregnated flax. It was highly recommended by the Yard guys, and the only kind of packing they use now.
So far , I'm happy
Ray